Apart from the strong high, there is also a weak high in the picture. A common mistake would be going short from this weak high or quitting your long position early. The price usually retests weak areas, and it tends to make strong highs/lows eventually. Weak highs/lows are places the price is likely to shoot through. There is no reason to quit your trade if it is heading into a weak high/low area. If the area is really weak, the price is most likely to test it and shoot past it.